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MAX96716 SPI CS

I am looking to use the MAX96716 SPI port to connect to SPI slave devices on the MAX96717 side of the link. There are Slave Select pins (CS) on the 96717 device but no companion Chip Select inputs on the 96716 device. From the user guide max96716a-max96716f-user-guide.pdf (analog.com) there is mention that additional control bytes are required to select the CS on the other side of the link. These are linked to the state of the RO pin. Is there any more information that describe how to select the CS?

What complicates this more is I will be embedding his chip into a Linux system and there are no Linux drivers to facilitate this special control bytes for a SPI entry in the device tree....

Does anyone have some suggestions on 1. controlling the CS/SS from the 96716 side? 2. methods to integrate this chip into the Devicetree SPI entries..

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  • Thank you. I did read this as well. I am integrating this into a Linux system and would like to be able to use the internal SPI controller. This required defining CS. Since this is not a standard interface, I think i need to write a Linux driver that will talk this specialized format. Do you know if one has already been written?

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